Arm mass/cartridge

Looking for cartridge to replace the sumiko BPS( too dry/sterile) on my linn ittok,mounted on an LP12. I believe you have to consider the arm mass(high,low....) together with the cartridge compliance....whatever that means.Can someone explain what I need to consider in making a good match.What IS the mass of the Ittok?
Go to appendix 2 of this FAQ

I don't know the effective mass of the Ittok, but a search ought to turn it up.